Home / 99,834.81-149,782.28-57,705.28

Finding the Fourth Proportional to 99,834.81, 149,782.28 and 57,705.28

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Solution

The fourth proportional to 99,834.81, 149,782.28 and 57,705.28 is: 86,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,834.81 : 149,782.28 = 57,705.28 : x
  2. Step 2: Convert to fraction form
    99,834.81/149,782.28 = 57,705.28/x
  3. Step 3: Cross multiply
    99,834.81x = 149,782.28 × 57,705.28
  4. Step 4: Simplify right side
    99,834.81x = 8,643,228,406.44
  5. Step 5: Solve for x
    x = 8,643,228,406.44/99,834.81
  6. Step 6: Final answer
    x = 86,575.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.